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Published in: Annals of Finance 3/2020

19-06-2020 | Research Article

The price leadership share: a new measure of price discovery in financial markets

Author: Riccardo De Blasis

Published in: Annals of Finance | Issue 3/2020

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Abstract

We propose a new measure to establish price leadership among multiple related price series using a multivariate Markov chain model. This new measure, the price leadership share (PLS), can easily be calculated when price series are related but not fully cointegrated (e.g. there is a fractional cointegration and the unit root test fails) and with more than two price series simultaneously, offering advantages over the existing price discovery measures. In addition, we propose a price leadership concentration index to help the comparative analysis. The measure is tested on six gold contracts, including spot, futures, and ETF, with a global coverage over a 2-year period. Results show that gold futures contracts, mainly the US contract (CME futures), have a major role in the price discovery function confirming the previous literature’s findings. Overall, the PLS measure overcomes the limits of other existing price discovery measures.

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Appendix
Available only for authorised users
Footnotes
1
For a comprehensive review of the price discovery measures with their limits and extensions, we refer the readers to Narayan and Smyth (2015).
 
2
This departure from the assumptions of the common efficient price in favour of a direct analysis or prices should not be considered as a step back to the lead-lag models. In fact, the model presented in this paper is based on a probabilistic model, the Markov chain model, therefore, rare spillovers of noise, i.e. temporary price impacts between markets, are less likely to influence the measure.
 
3
Markov chain models have been used to model financial markets (Chu et al. 1999), to perform stock valuation (Hurley and Johnson 1994; Yao 1997; Hurley and Johnson 1998; Ghezzi and Piccardi 2003; Barbu et al. 2017), and to model credit rating (D’Amico et al. 2006; Vasileiou and Vassiliou 2006; D’Amico et al. 2016).
 
4
See e.g., Niederhoffer and Osborne (1966), Dryden (1969), Fielitz and Bhargava (1973), Mcqueen and Thorley (1991), and Tan and Yılmaz (2002).
 
5
Each element of the matrix is a probability and every change from a state i must end in a state j, therefore the matrix is a stochastic matrix.
 
6
It is worth noting that if there is no dependency between the price change series, the model still works but the matrix (10) becomes an identity matrix.
 
7
The solution applied by Patel et al. (2019) is to keep only permanent price impacts that are non-negative, with the cost of losing possible valuable information.
 
Literature
go back to reference Billingsley, P.: Statistical Inference for Markov Processes. University of Chicago Press, Chicago (1961a) Billingsley, P.: Statistical Inference for Markov Processes. University of Chicago Press, Chicago (1961a)
go back to reference Kraft, D.: A software package for sequential quadratic programming. Technical Report 88-28, DLR German Aerospace Center—Institute for Flight Mechanics, Braunschweig (1988) Kraft, D.: A software package for sequential quadratic programming. Technical Report 88-28, DLR German Aerospace Center—Institute for Flight Mechanics, Braunschweig (1988)
go back to reference Theil, H.: Economics and Information Theory. North-Holland Pub. Co., Amsterdam (1967) Theil, H.: Economics and Information Theory. North-Holland Pub. Co., Amsterdam (1967)
Metadata
Title
The price leadership share: a new measure of price discovery in financial markets
Author
Riccardo De Blasis
Publication date
19-06-2020
Publisher
Springer Berlin Heidelberg
Published in
Annals of Finance / Issue 3/2020
Print ISSN: 1614-2446
Electronic ISSN: 1614-2454
DOI
https://doi.org/10.1007/s10436-020-00371-3

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